For citations:

Aybazov A.M., Shevchenko A.N., Selionova M.I., Mamontova T.V. Comparative characteristics of ram semen frozen in different extenders. IZVESTIYA OF TIMIRYAZEV AGRICULTURAL ACADEMY. 2021;(4):63-78. (In Russ.) https://doi.org/10.26897/0021-342X-2021-4-63-78